I'm sorry, I know I was going to do a M chapter, but I'm a bit 'smutted' out at the moment after doing my 'Order' oneshot. It happens to the best of us *grin* I might do it as a separate oneshot because I'm hoping to wrap up this fic soon. I do promise I will write it, just not immediately.

Derek raised his hand to knock on Emily's apartment door but stopped before making contact when he heard her voice.

"Ohhh ... Aaron, that's soooooo good, don't stop." Even from the other side of the door, Derek could hear Emily clearly. "Mmm ... right there, oh, that's it." Her voice sounded drugged with pleasure. "Harder, ahh, yessssss ... you're so incredibly good at this."

"How about like this?" Hotch asked. "Is this hard enough?"

Emily's only reply was a long moan.

What the hell, thought Derek. Were they actually doing what he thought they were doing?

Reid suddenly appeared next to him. "What's up? Why aren't you inside yet?" he asked, looking at Derek quizzically.

Shut up, mouthed Derek, frowning fiercely at his colleague. The last thing he wanted was for the couple to know he had been eavesdropping. Even if it had been purely by chance.

"Did you say you want me to move faster?" Hotch continued. "I like it better this way. Long, and slow and deep." The couch creaked.

"Oh, Aaron," moaned Emily.

Derek felt his cheeks heat. He couldn't even meet Reid's eyes when at any other time he would have revelled in Reid's embarrassment. He blew out a breath. Forget this shit. He'd rather face Strauss' wrath for failing to deliver the urgent document to Hotch than stand here listening to his partner and Unit Chief get it on.

"Oh wow, are they really..." Reid's voice sounded somewhat strangled.

"I'm getting out of here. You can deliver this to Hotch." Derek shoved the A4 envelope to Reid.

"What? But Strauss asked you to do it," protested Reid. "I don't want Hotch to know I've been standing here the whole time they've been engaged in you-know-what!"

"Better you than me. If I have to stand here another minute listening to them, I'm going to have to cut my ears off and burn them. I already need to get my memory of the last few minutes wiped."

"What, do you think I'm enjoying this? You're the one who looks at porn on the internet!" hissed Reid.

"There's nothing wrong with looking at porn, it's completely normal. Listening to your boss having sex with your partner, now that's wrong!"

They both jumped back when Emily's door suddenly swung open. Emily stood before the both of them, wearing a bathrobe, her hair in disarray. "For the love of God! Who the hell could remain turned on while listening to the two of you squabbling like two-year-olds! Having sex, hah! What a joke." She looked extremely pissed.

Derek felt a wave of embarrassment sweep through him. Damn, he couldn't remember the last time he actually experienced that particular feeling. He didn't think he could feel worse if he had walked in on his parents doing the deed.

"Well, are you coming in or what?" she asked impatiently, tightening the belt on her bathrobe with a vicious pull. She glared at them.

Derek heard Reid swallow hard. They walked inside and she closed the door behind them sharply.

"Hotch is in the kitchen. I'm going to put some clothes on." She strode off before either one of them could say anything.

The two of them walked into the kitchen to find their Unit Chief pouring coffee into a mug. He was dressed in jeans and a sweatshirt. Thank God for small favours. After what they had overheard, Derek had feared he would be seeing a part of his boss that a subordinate should never have to see. Unless it was Hotch and the subordinate was Emily, that is.

"Morgan, Reid. What are you doing here?"

Derek was relieved to hear Hotch's mild tone. He didn't look angry either. That was a relief. Emily pissed off was bad enough. Hotch pissed off didn't bear thinking about.

Reid spoke up. "We're really very sorry to interrupt, sir, but Chief Strauss asked us to drop these papers off to you."

"Yeah, we're sorry we came at a bad time," Derek felt compelled to add.

Hotch frowned. "What do you mean?"

"For interrupting the both of you when you were uh ... you know." Derek found himself uncharacteristically at a loss for words.

His supervisor's eyes narrowed. "No, I don't know."

Bloody hell. Could this conversation get any more awkward? "Never mind," Derek muttered.

"What exactly did you think Emily and I were doing?" asked Hotch in a conversational tone.

Derek was feeling so embarrassed that he failed to see the twinkle in Hotch's eye. Apparently neither did Reid, who blurted out, "Having sexual intercourse, sir."

Derek flashed Reid an incredulous look. "Reid!"

The two of them looked askance at Hotch when he chuckled. "What made you think we were doing that?"

"Uh, Hotch, did you actually hear yourselves?" Derek paused. "Wait a minute, you mean you weren't?"

"No, we weren't." Hotch took a sip of his coffee, still smiling.

"What were you doing then?" asked Reid, brow furrowed. Derek would have bet his next pay check that the good doctor was playing back the part of the 'conversation' that he had overheard.

"Hotch was giving me a massage." Emily swept into the kitchen, now dressed in a pair of black jeans and red top.

"Was that what you were doing. For a while there we thought you guys were doing something sexual." Derek gratefully took the mug of coffee Hotch was holding out to him.

Emily looked up from popping some bread into the toaster. "Who said the massage wasn't sexual? Hotch is very good with his hands you know. Among other things. One of the major benefits of dating an overachiever." She winked at Derek.

Derek's hand jerked, spilling hot coffee on it. "Shit!"

"Emily," murmured Hotch.

Derek looked up. Hotch was no help. The smile on his supervisor's face was more indulgent than reproving.

Emily looked smug. "That's for interrupting my massage-with-a-happy-ending."

"I am so going to get you back, Prentiss." Derek glared at her, wiping his hand on his shirt.

She laughed, walking up next to Hotch and sliding her arm around his waist. "Go right ahead. Just don't forget that I'm sleeping with the boss. And you've no one to blame but yourself."

All Derek could do was grit his teeth while Reid laughed out loud at him.

I got the 'massage' idea from a recent Blue Bloods episode. Hope you enjoyed this chapter.